Numerical techniques for Fresnel diffraction in computational
... in a hologram and the computational effort that goes into its calculation are several orders of magnitude beyond traditional two-dimensional imaging [SHBL92]. Various approaches to computational hologram construction have been researched, of which the most prominant are interference-based [MT00, IS0 ...
... in a hologram and the computational effort that goes into its calculation are several orders of magnitude beyond traditional two-dimensional imaging [SHBL92]. Various approaches to computational hologram construction have been researched, of which the most prominant are interference-based [MT00, IS0 ...
Document
... Aristotle was one of the first to publicly hypothesize as to the nature of light, proposing that it was a disturbance in the element air. At the beginning of the 11th century, the Arabic scientist Alhazen wrote the first comprehensive treatise on optics; describing refraction, reflection, and the op ...
... Aristotle was one of the first to publicly hypothesize as to the nature of light, proposing that it was a disturbance in the element air. At the beginning of the 11th century, the Arabic scientist Alhazen wrote the first comprehensive treatise on optics; describing refraction, reflection, and the op ...
Experimental and Theoretical Studies in Optical Coherence Theory
... Throughout history, people have been fascinated by the nature of light. A prime illustration is the use of mirrors. The first known man-made mirror, found in modern-day Turkey, dates from around 6200 BC. In the next three thousand years, Egyptians and Sumerians created metal mirrors, first from copp ...
... Throughout history, people have been fascinated by the nature of light. A prime illustration is the use of mirrors. The first known man-made mirror, found in modern-day Turkey, dates from around 6200 BC. In the next three thousand years, Egyptians and Sumerians created metal mirrors, first from copp ...
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Untitled - X-Ray and Neutron Science
... With the advert of modern computers and technologies, simulation has become a very powerful tool, which allows prediction of experimental outcomes with high precision and accuracy, optimisation and improvement of existing setups and can even reveal otherwise unattainable qualities of a modelled inst ...
... With the advert of modern computers and technologies, simulation has become a very powerful tool, which allows prediction of experimental outcomes with high precision and accuracy, optimisation and improvement of existing setups and can even reveal otherwise unattainable qualities of a modelled inst ...
Read more - Spectromatch
... heated. This is useful for indicating the colour of a light source - so 2500K being orange whilst 7500K being blue. Colour Rendering Index (CRI) is a measure of the effect of an illuminant on the colour appearance of objects by conscious or subconscious comparison with their colour appearance under ...
... heated. This is useful for indicating the colour of a light source - so 2500K being orange whilst 7500K being blue. Colour Rendering Index (CRI) is a measure of the effect of an illuminant on the colour appearance of objects by conscious or subconscious comparison with their colour appearance under ...
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[pdf]
... (upper-state lifetime 875 ns) of atomic 174Yb. The Yb was housed in a stainless-steel vapor cell with a 5-cm active vapor length. The cell was maintained at a constant temperature of about 750 K to produce a weak signal absorption of 50% at line center. The absence of a hyperfine interaction in 174Y ...
... (upper-state lifetime 875 ns) of atomic 174Yb. The Yb was housed in a stainless-steel vapor cell with a 5-cm active vapor length. The cell was maintained at a constant temperature of about 750 K to produce a weak signal absorption of 50% at line center. The absence of a hyperfine interaction in 174Y ...
Optical Fibers and Fiber-Optic Communications
... this,6 and demonstrated that a hyperbolic secant profile could very nearly equalize the velocity of all modes. The a -profile description eventually became the most popular due to the analytic expansions it allows (for certain values of a ) and the fact that it requires the optimization of only a si ...
... this,6 and demonstrated that a hyperbolic secant profile could very nearly equalize the velocity of all modes. The a -profile description eventually became the most popular due to the analytic expansions it allows (for certain values of a ) and the fact that it requires the optimization of only a si ...
Paper - University of Queensland
... spectral filters directly to the pixels, similar to pigmentation in animals [2]. Most color image sensors are constructed by monolithically integrated pixel-pitch-matched color filters (e.g., red, green, and blue color filters) with an array of complementary metal–oxide–semiconductor (CMOS) or charg ...
... spectral filters directly to the pixels, similar to pigmentation in animals [2]. Most color image sensors are constructed by monolithically integrated pixel-pitch-matched color filters (e.g., red, green, and blue color filters) with an array of complementary metal–oxide–semiconductor (CMOS) or charg ...
Spectral Characteristics of Semiconductor Lasers with Optical
... This is illustrated by plots of O as a function of X for increasing levels of feedback in Fig. 2. For sufficiently small r [Fig. 2(a) and (b)], only one mode is present, but at the highest feedback level [Fig. 2(c)], (3) is satisfied for multiple values of k. Note, however, that changing the phase o ...
... This is illustrated by plots of O as a function of X for increasing levels of feedback in Fig. 2. For sufficiently small r [Fig. 2(a) and (b)], only one mode is present, but at the highest feedback level [Fig. 2(c)], (3) is satisfied for multiple values of k. Note, however, that changing the phase o ...
Point spread function engineering in confocal scanning microscopy
... The improvement of the performance of optical microscopes has aimed many researches along the last decades. Conventional wide-field microscopes are close to reach their maximum efficiency through the use of the available objectives with numerical apertures (NA) up to 1.4. However, when using this ki ...
... The improvement of the performance of optical microscopes has aimed many researches along the last decades. Conventional wide-field microscopes are close to reach their maximum efficiency through the use of the available objectives with numerical apertures (NA) up to 1.4. However, when using this ki ...
Power Point file
... Onlycross one section propagation mode is allowed infiber a given tube. = diameter) This (d is achieved by very small core diameter (8-10 µm) SMF offers bit rate, most ...
... Onlycross one section propagation mode is allowed infiber a given tube. = diameter) This (d is achieved by very small core diameter (8-10 µm) SMF offers bit rate, most ...
Composite THz materials using aligned metallic
... having strong polarization properties, and chalcogenide-based metamaterial films with designable high refractive index. We would like to note that mass production of the vertically aligned extremely long metallic micro/nanowires using fiber drawing technique was recently detailed in [14]. In applica ...
... having strong polarization properties, and chalcogenide-based metamaterial films with designable high refractive index. We would like to note that mass production of the vertically aligned extremely long metallic micro/nanowires using fiber drawing technique was recently detailed in [14]. In applica ...
Full text in DIVA
... Address all correspondence to Arne Erikson, Physics Norwegian University of Science and Technology, Høgskoleringen 5-Trondheim, Sør Trøndelag 7491 ...
... Address all correspondence to Arne Erikson, Physics Norwegian University of Science and Technology, Høgskoleringen 5-Trondheim, Sør Trøndelag 7491 ...
Calibration of the amplification coefficient in
... imperfections and approximations in the way that the center wavelength is calculated using Fourier methods. For example, if the coherence envelope is not fully captured by the data acquisition, there may well be ringing and frequency leakage that displace the measured center wavelength. We estimate ...
... imperfections and approximations in the way that the center wavelength is calculated using Fourier methods. For example, if the coherence envelope is not fully captured by the data acquisition, there may well be ringing and frequency leakage that displace the measured center wavelength. We estimate ...
Characterisation of the Humidity and Temperature Responses of a
... application where cheap, disposable relative humidity indicators, providing information at a glance without additional power source are required. We have recently reported some initial results on the design and fabrication of a humidity sensitive reflection hologram that could be used in visual indi ...
... application where cheap, disposable relative humidity indicators, providing information at a glance without additional power source are required. We have recently reported some initial results on the design and fabrication of a humidity sensitive reflection hologram that could be used in visual indi ...
Applications of Surface Metrology to Issues in Art
... experiment to discern different brush hair types and different paint material by taking measurements using fine-scaled microscopes and analyzing the results using surface metrology software. As a result, we were able to discern different brush hair types from each other with 99.9% confidence level e ...
... experiment to discern different brush hair types and different paint material by taking measurements using fine-scaled microscopes and analyzing the results using surface metrology software. As a result, we were able to discern different brush hair types from each other with 99.9% confidence level e ...
Quantifying and pinpointing sources of noise in optical tweezers experiments
... setup, however, requires the use of at least two laser beams and two independent detection systems. Another way to reduce drift that is often employed in optical trapping setups is to move the system of interest away from any surface subject to significant drift. This could be done by using a dual-tr ...
... setup, however, requires the use of at least two laser beams and two independent detection systems. Another way to reduce drift that is often employed in optical trapping setups is to move the system of interest away from any surface subject to significant drift. This could be done by using a dual-tr ...
Single-Photon Nonlinear Optics with Graphene Plasmons
... Introduction.—Nonlinear optical processes find ubiquitous use in modern scientific and technological applications, facilitating diverse phenomena like optical modulation and switching, spectroscopy, and frequency conversion [1]. A long-standing goal has been to realize nonlinear effects at progressi ...
... Introduction.—Nonlinear optical processes find ubiquitous use in modern scientific and technological applications, facilitating diverse phenomena like optical modulation and switching, spectroscopy, and frequency conversion [1]. A long-standing goal has been to realize nonlinear effects at progressi ...